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Attached Table 1：PCHUD software parameters explanations:
VRPM engine speed
VTHROT throttle position
VBARO BARO
VMAP manifold air pressure
VMAPEXP expect manifold air pressure
VIGN ignition key voltage
VCLTS cylinder temperature or coolant temperature
VIAT intake air temperature
STATUSBYTE5 STATUSBYTE5
VAFCMET airflow correction met
VBAROCMET Baro update met
VCSINSYNSPRK sequential spark enable
SATITRIG tip-in Spark Advance retard trigger
CATLOENB catalyst light-off logic enable
IF ENGSTATE=3 engine work in run state
NISTBLIDLE stable warm idle
FO2REDY2 O2 ready
FCNO block learn memory cell
FBLMCOR1 cylinder 1 block learn memory
FCLCINT1 integral of close loop correction
FCLCMUL1 close loop correction
IARDRPM desired idle rpm
IARPMERR idle rpm error
FPWVC1 base pulse width of cylinder 1
VO2 Oxygen sensor signal
STATUSBYTE3 STATUSBYTE3
FO2STAT1 cylinder 1 oxygen sensor signal rich lean state
FCLREST1 cylinder 1 close loop correction reset
FOSHTREN Oxygen sensor heater enable
FO2REDY1 cylinder 1 Oxygen sensor ready
IF IACV MODE=0 idle airflow control valve close loop correction enable
IAMTRLOST IACV lost
IACMVIHB IACV move disable
VIGNS ignition state
FVE1 cylinder 1 Volumetric efficiency
VMAPRANG MAP read angle
AFFNLAFR target air fuel ratio
SAESTA cylinder 1 Spark Advance
SAIDLDYN idle dynamic Spark Advance
SPDWELL dwell time
IAINTEGOFST airflow integral of idle air control valve
IACVDSMP desired position of idle air control valve
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